Добірка наукової літератури з теми "Waste paper Cleaning"

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Статті в журналах з теми "Waste paper Cleaning"

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Nguyen, Son T., Jingduo Feng, Nhat T. Le, Ai T. T. Le, Nguyen Hoang, Vincent B. C. Tan, and Hai M. Duong. "Cellulose Aerogel from Paper Waste for Crude Oil Spill Cleaning." Industrial & Engineering Chemistry Research 52, no. 51 (December 11, 2013): 18386–91. http://dx.doi.org/10.1021/ie4032567.

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Si, Yifan, and Zhiguang Guo. "Bio-inspired writable multifunctional recycled paper with outer and inner uniform superhydrophobicity." RSC Advances 6, no. 37 (2016): 30776–84. http://dx.doi.org/10.1039/c6ra04259g.

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One kind of multifunctional superhydrophobic recycled paper from the secondary use of waste paper has been prepared successfully with wonderful self-cleaning, anti-fouling and oil absorption abilities.
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Mullakaev, M. S., and G. B. Veksler. "Galvanocoagulative Cleaning of Chromium-Containing Waste Water." Ecology and Industry of Russia 22, no. 8 (August 1, 2018): 8–13. http://dx.doi.org/10.18412/1816-0395-2018-8-8-13.

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The paper presents the results of laboratory and bench experiments to determine the rational modes of galvanochemical cleaning of chromiumcontaining waste water from JSC "Russian Chrome 1915". Recommendations are given on the modernization of the existing purification system of the enterprise on the basis of the developed technological scheme, which can be realized through the creation of two autonomous units: neutralization and separation. The developed technology foundations can be the basis of a new approach in dealing with a wide range of chromium-containing wastewater treatment problems.
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Lu, Qing Yi, Li Qun Chen, and Xiang Kang. "Innovative Design of a New Water-Saving Greenbelt Cleaning Device." Advanced Materials Research 823 (October 2013): 184–87. http://dx.doi.org/10.4028/www.scientific.net/amr.823.184.

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With respect to serious water waste and backward cleaning devices relevant to the cleaning of road greenbelts, this paper describes an independently-designed water-saving greenbelt cleaning device with performance of energy saving and emission reduction. After the device is developed, relevant cleaning experiments are conducted on the gardening vehicles. The results show that the new water-saving greenbelt cleaning device can improve the efficiency of water utilization significantly.
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Feofanov, Yu A. "Operational characteristics of the paper factory's biological wastewater treatment facilities." Вестник гражданских инженеров 17, no. 3 (2020): 162–67. http://dx.doi.org/10.23968/1999-5571-2020-17-3-162-167.

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The results of the biological wastewater treatment facilities of the paper factory using raw materials of different kinds (waste paper and pulp) are analyzed. The main performance characteristics of these structures (oxidative capacity for organic pollution and cleaning efficiency) at different loads on them have been determined. Recommendations have been worked out to improve the performance and efficiency of the treatment plant.
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Lemann, M. "The Waste Handling System of the Waste Disposal Department of the City of Zurich (Abfuhrwesen Zurich)." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 209, no. 3 (August 1995): 233–41. http://dx.doi.org/10.1243/pime_proc_1995_209_041_02.

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This paper outlines the system used by the authorities in Zurich to treat and recycle waste in an environmentally acceptable way. The waste incineration system produces power and incorporates a district heating system as well as a wet gas-cleaning process.
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Yasen Abd, Rasha, Ali Sachit Kaittan, and Raghad Ali Mejeed. "Implementation of a developed water tunnels cleaning model with an automatic sensing and operation mechanism." International Journal of Engineering & Technology 9, no. 3 (August 24, 2020): 718. http://dx.doi.org/10.14419/ijet.v9i3.30827.

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Iraq contains two main rivers with several sub streams and tributaries. One of the most important problems in these streams and tributaries is the amount of waste on the water surface. This waste can lead to many issues such as diseases infection and affects the fisheries. River cleaning machine is one of the most important solutions for this problem. In this paper, a developed cleaning machine was designed based on Arduino and remote sensing mechanism to reduce the operation time and cost. The proposed cleaning machine model was tested and validated and can be used efficiently in many places under different conditions.
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Md Sidek, Mufidah, Azura A. Rashid, and Baharin Azahari. "Effect of Different Thickness of Core Layer on Tensile Properties of Laminated Natural Rubber Latex Film." Advanced Materials Research 1024 (August 2014): 259–62. http://dx.doi.org/10.4028/www.scientific.net/amr.1024.259.

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Laminated natural rubber latex with cleaning agent and waste latex compound was prepared by arranging half-cured latex sheets with various thicknesses of core layer then moulding using hot press according to the Rheometer graph. Laminated layers consist of outer layer (natural rubber latex films with cleaning agent) and core layer (waste natural rubber latex film). The core layer and outer layer are prepared through casting method with different thickness. For core layer, three different thickness of film is cast and for outer layer the thickness is control. The aim of this paper is to study the effect of different thickness of core layer and the different molding temperature on tensile and swelling properties of laminated films. The tensile test was carried out to acquire good interfacial adhesion between the laminates films. The fractured surface morphologies were carried out using digital microscope (Dino-Lite) to understand the interfacial interaction between core and outer layer of the films. The use of NRL lamination films with NRL waste will contribute to novel materials for as mould cleaning product with green and easier cleaning compare to conventional cleaning process.
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Gabbar, Hossam A., Davide Lisi, Mohamed Aboughaly, Vahid Damideh, and Isaac Hassen. "Modeling of a Plasma-Based Waste Gasification System for Solid Waste Generated Onboard of Typical Cruiser Vessels Used as a Feedstock." Designs 4, no. 3 (September 8, 2020): 33. http://dx.doi.org/10.3390/designs4030033.

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In this paper, a model for a single stage plasma gasification system for marine vessels characterized by significant waste production is proposed. The main objective of the model is to investigate the effects of different feedstock compositions on key parameters, such as electrical power produced and heat recovered. The different types of waste generated onboard are described along with their environmental impacts. Specific attention is given to solid wastes, sewage sludge and plastic wastes as potential feedstock. Their average generation, proximate and ultimate analysis are defined, as input to the process model. The process assumptions used in the simulation model are illustrated. The system model is divided into five units: the pre-treatment unit; the gasification unit; the syngas cleaning unit; the energy conversion unit; and the heat recovery unit. Four operational scenarios are investigated to consider several variations of composition of the main feedstock. From the results of the simulations, the system model shows good feedstock flexibility, and the possibility of operating in net electricity gain conditions. The cold gas efficiency of the process is also assessed and its maximum value is obtained for the highest concentrations of sewage sludge (33.3%) and plastic (16.7%). Other parameters investigated are the combustion temperature, sorbent consumption in the cleaning process, feedstock and syngas lower heating value LHV.
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Patel, Yuvraj, Deepanshu Pandita, Ashwin Nair, Nikhil Mathapati, and Mimi Cherian. "IoT Based Bot for Flood Water Cleaning and Treatment." International Journal for Research in Applied Science and Engineering Technology 10, no. 4 (April 30, 2022): 2063–67. http://dx.doi.org/10.22214/ijraset.2022.41703.

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Abstract: This survey paper is an attempt to construct a bot that can clean and treat flood water. During floods, water becomes contaminated with waste because the use of plastic and other harmful materials is increasing uncontrollably in many floodaffected areas. Toxins from these elements disrupt the ecosystem and endanger human health, leading to cancer, congenital malformations, and immune system problems. Water scarcity is a severe concern in modern society that requires a lot of attention. As a result, flood water must be treated. By collecting the waste treatment of water using chemicals, a bot for flood water cleaning and treatment utilizing IoT is created. Keywords: Internet of Things, Flood Waste, Water Treatment, Bot, Bluetooth, Arduino
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Дисертації з теми "Waste paper Cleaning"

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Palnati, Mahendra. "Design, Fabrication and Analysis of a Paver Machine Push Bar Mechanism." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/6007.

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Now-a-days, the major challenge that’s being faced by the concrete industry is the cleaning of concrete handling equipment. Concrete consists of aggregates, which harden with time, and the transportation of concrete mixture within the plant is a significant problem. This will not only increase the overall maintenance cost, but will lead to loss of raw materials, affect the rate of production, and reduce the lifetime of concrete handling equipment. The present study focuses on the design and implementation of an adaptive cleaning mechanism in the concrete industry and its importance in achieving efficient cleaning, which is tested to verify its performance in the Paver production plant. The goal of this study is to provide practical evidence about the importance of adaptive cleaning mechanisms for industrial applications. The first chapter gives a detailed introduction about pavers and the production process, the cause of material loss that occurs during transportation of wet concrete mixture inside a paver plant, and its effect on handling equipment and work environment. The second chapter explains design and working of the paver machine push bar mechanism, which can be implemented in a hydraulic press production process of pavers. The third chapter includes analysis and results of the mechanism obtained using Solidworks and Autodesk Inventor followed by observations that are achieved based on practical application of this mechanism in a paver production plant.
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Книги з теми "Waste paper Cleaning"

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National Risk Management Research Laboratory (U.S.). Technology Transfer and Support Division., ed. Technical approaches to characterizing and cleaning up brownfields sites: Pulp and paper mills : site profile. Cincinnati, OH: Technology Transfer and Support Division, National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 2002.

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John, Elkington, and Jonathan Shopley. Cleaning Up: U s Waste Management Technology and Third World Development (Wri Papers,). World Resources Institute, 1989.

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Тези доповідей конференцій з теми "Waste paper Cleaning"

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Ng, Shao Kai, Son T. Nguyen, Jia Cheng Oh, Wong Pei Wen Janet, Hai M. Duong, Vincent B. C. Tan, and Jingduo Feng. "Morphology Control of Recycled Cellulose Aerogels from Paper Waste for Oil Spill Cleaning." In 2nd Annual International Conference on Sustainable Energy and Environmental Sciences (SEES 2013). Global Science and Technology Forum, 2013. http://dx.doi.org/10.5176/2251-189x_sees13.34.

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Marra, Dominic. "An Innovative Boiler Cleaning Method Using a Rotary Cable Swivel Tool." In 12th Annual North American Waste-to-Energy Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/nawtec12-2222.

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The boiler generating bank (convective) sections of waste to energy boilers are commonly found to be very limited in regards to personnel access. The Miami-Dade County Resources Recovery Facility has had a challenge in the past to effectively clean this section of the boiler either on line or within a timely manner during outages. In 2003 the company used a new innovative method for cleaning this section off line. The boilers were 100% clean in 1/2 to 1/3 the usual time. The new method involved high-pressure industrial water blasting as typically used, with the exception of the water delivery device/system. Normally the water delivery method involves personnel placed in the boiler with hand held high-pressure water lances. They require confined space monitoring, lighting, scaffolding, proper air supply, frequent breaks, rain suits, full face shields and other PPE for safety inside the boiler. These factors combined with the limited space severely constrain the personnel and their effectiveness when using the water lances. Cleaning is compromised and has led to poor effectiveness and long duration cleanings. Explosives have also been tried to help augment cleaning. The new method used in 2003 involved no personnel in the boiler. Instead, for the water delivery system, a support cable is erected across the boiler upon which a rotary cable swivel tool (CST) is mounted. The tool has connections for high-pressure water and plant air and a simple winch for traversing the tool across the furnace. Very effective cleaning was accomplished from drum to drum, a distance of 20 feet (6.1 m). Depending on the application, the water pressure can be adjusted for maximum effectiveness. The air pressure is also adjusted to control the speed at which the rotary nozzles spin to best match the fouled conditions. The orientation and number of nozzles is also optimized for each application. This paper details the results of using the rotary Cable Swivel Tool (CST) in the generating bank section of the boilers and discusses related operational and maintenance benefits.
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Herrlander, Bo. "Novel Gas Cleaning With Integrated Energy Recovery." In 19th Annual North American Waste-to-Energy Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/nawtec19-5415.

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High-energy recovery combined with low emissions to air and water was targeted when Jo¨nko¨ping Energi planned their new Waste to Energy plant at Torsvik in Sweden. The plant is compliant with the new EU Industry Directive and the Waste Frame Directive R-formula, which defines energy recovery levels for recycle of energy. In total about 160 000 tons of municipal (40%) and commercial waste (60%) is annually converted into usable energy. The average heat value is 11,7 MJ/kg. The energy produced is a combination of electricity (14 MWe) and heat (42–56 MWth, depending on electricity production). The heat is recovered both in a boiler and in a condenser. The flue gas condensing system is combined with a heat pump (10 MWth) to optimize the heat recovery rate. The plant is designed to fulfill the requirements set by the Swedish authorities, which are more stringent than the EU emission requirements. Some examples of the plant emissions to air guarantees: dust 5, HCl 5, SO2 20, HF1, Hg 0,03, Cd+Tl 0,05, other HM 0,5 all in mg/Nm3 and dioxin 0,05 ng/Nm3. The flue gas cleaning upstream of the condenser consists of a combination of a semi-dry system and a wet scrubber. The gas cleaning system operating range goes from 60 000 up to 127 000 Nm3/h depending on load and fuel heat value. The semi-dry system is carrying out the major part of the gas cleaning and is sufficient to comply with the air regulations. However, in order to minimize the treatment of the condensate from the condenser the wet scrubber is installed after the semi-dry system and upstream the condenser. The blow down from the scrubber is reused within the plant. Thus the polishing scrubber secures minimal treatment of the condensate to comply with the local stringent limits, particular chlorides, before release to the recipient lake Munksjo¨n. Emissions to water were 2010 nitrogen 1,7 mg/l, Cl <3,6 mg/l, As 0,66 μg/l, Cd <0,07 μg/l, Cr <6 μg/l, Cu 0,8 μg/l, Hg <0,4 μg/l, Ni <0,66 μg/l, Pb<1,2 μg/l, Tl<1,3 μg/l, Zn<7,2 μg/l and PCDD/PCDF 0,0088 ng/l. In the wet scrubber acid stage residual HCl and excess ammonia from the SNCR system are removed. The latter compound is important to capture in order to prevent eutrophication. The combination of a semidry and a wet system enables an optimization of the flue gas cleaning with regard to the different operating situations, taking into account seasonal demand variations as well as fuel alterations. The concept has demonstrated very low emissions combined with low consumption of lime. The possibility to optimize the flue gas cleaning performance is a prerequisite for minimal condensate treatment and optimal energy recovery. The paper will describe the system and the operating experiences.
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Mueller, Christian, Manfred Frach, Marc Tirkschleit, Danny Tandra, and Charlie Breeding. "Fuel-Specific On-Load Boiler Cleaning Solutions in Waste Incineration Plants: Challenges, Concepts, Experiences." In 18th Annual North American Waste-to-Energy Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/nawtec18-3526.

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The range of fuels fed to waste incineration plants extends from well-sorted domestic refuse through mixed waste fractions to fuel mixtures that may additionally contain various types of hazardous waste and biomass. This diversity results in a great number of fuel and ash compositions. Among these are fuels with a high calorific value as well as with a low calorific value and simple fuel ashes just as highly problematic fuel ashes. The latter can lead to increased slagging in the combustion chamber and fouling in the open passes of waste incineration plants as well as accelerated corrosion. The plant operator is consequently faced with considerable challenges associated with unscheduled boiler downtime and production losses. The paper describes how fuel specific process know-how is applied in combination with fully automated, efficient onload boiler cleaning systems to control the slagging issues. The paper describes a system which utilizes water as the cleaning medium. The system allows the targeted cleaning of waste incinerators during operation. This paper points out challenges faced by plant operators and suppliers of boiler cleaning technology caused by the heterogeneous fuel composition, and describes in well monitored case studies how these challenges can be successfully met.
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Smith, Lynne K., and Kathleen K. Clodfelter. "Cleaning Up the Legacy: Opening and Operating the Waste Isolation Pilot Plant." In ASME 2001 8th International Conference on Radioactive Waste Management and Environmental Remediation. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/icem2001-1145.

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Abstract In 1957, the National Academy of Sciences concluded that the most promising disposal option for radioactive wastes was burial in deep geologic repositories situated in salt formations. In 1981, after decades of study, the United States initiated construction of the Waste Isolation Pilot Plant (WIPP) at a desert site 41.6 km (26 miles) southeast of Carlsbad, New Mexico. This paper provides an overview of the history and the regulatory and public process to permit a repository for disposal of transuranic wastes. In addition, the process to ensure its long-term operation in a safe and environmentally sound manner will also be discussed.
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Duignan, Mark R., and Charles A. Nash. "Experiments on Cake Development in Crossflow Filtration for High Level Waste." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-09017.

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Crossflow filtration is a key process step in many operating and planned waste treatment facilities to separate undissolved solids from supernate slurries. This separation technology generally has the advantage of self cleaning through the action of wall shear stress, which is created by the flow of waste slurry through the filter tubes. However, the ability of filter wall self cleaning depends on the slurry being filtered. Many of the alkaline radioactive wastes are extremely challenging to filtration, e.g., those containing compounds of aluminum and iron, which have particles whose size and morphology reduces permeability. Low filter flux can be a bottleneck in waste processing facilities such as the Salt Waste Processing Facility at the Savannah River Site and the Waste Treatment Plant at the Hanford Site. Any improvement to the filtration rate would lead directly to increased throughput of the entire process. To date, increased rates are generally realized by either increasing the crossflow filter axial flowrate, which is limited by pump capacity, or by increasing filter surface area, which is limited by space and increases the required pump load. In the interest of accelerating waste treatment processing, DOE has funded studies to better understand filtration with the goal of improving filter fluxes in existing crossflow equipment. The Savannah River National Laboratory (SRNL) was included in those studies, with a focus on startup techniques and filter cake development. This paper discusses those filter studies. SRNL set up both dead-end and crossflow filter tests to better understand filter performance based on filter media structure, flow conditions, and filter cleaning. Using non-radioactive simulated wastes, which were both chemically and physically similar to the actual radioactive wastes, the authors performed several tests to demonstrate increases in filter performance. With the proper use of filter flow conditions filter flow rates can be increased over rates currently realized today. This paper describes the selection of a challenging simulated waste and crossflow filter tests to demonstrate how performance can be improved over current operation.
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Ladwig, Jeff, and Robin Linton. "Pulse-Jet Baghouse Optimization in WTE: Meeting the Challenges of the Future." In 13th Annual North American Waste-to-Energy Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/nawtec13-3165.

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Like many coal-fired power plants today, the waste-to-energy (WTE) industry is faced with a number of challenges including the need to maximize plant output, lower outlet emissions and increase plant efficiencies. Within WTE, there’s also been a move from reverse-air baghouses to pulse-jet collectors due to lower initial capital costs and the ability to operate pulse-jet collectors at higher air-to-cloth ratios (3–4:1), allowing for a smaller housing footprint. However, the majority of today’s pulse-jet collectors utilize an off-line cleaning mode where modules are taken out of service and pulsed to lower the differential pressure. There are inherent advantages in switching from an off-line cleaning mode to an on-line cleaning mode. This paper discusses the idea of using the fabric filter as a damper and stabilizing draft through the baghouse and boiler. It also outlines the use of pleated filter element (PFE) technology to address increased production concerns, and the need for lower outlet emissions.
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Gillum, Craig, Arthur Cole, and Roger Anderson. "Refurbishment of an Existing 1000 TPD MSW Facility Using Modern State of the Art Equipment." In 10th Annual North American Waste-to-Energy Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/nawtec10-1004.

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This paper discusses the design, startup and operation of four rebuilt and redesigned 250 TPD MSW combustion trains located at the McKay Bay Waste to Energy Facility in Tampa Florida. Each independent MSW train consists of a new steam generator, reciprocating grate stoker, ash handling and air pollution control system. The new steam generators are built on the footprint of the original units, which were removed in their entirety leaving only the lower foundation steel. The refurbishment was accomplished in two stages to permit the facility to remain in operation. The new steam generators are designed to minimize fouling, maximize the amount of operating time between cleaning cycles and maintain steam temperature. Evaluation of startup and operating data demonstrates that the units exceed their planned operating time between cleaning cycles and will provide consistent reliable performance over the service life of the facility.
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De Greef, Johan, Renaat De Proft, Kenneth Villani, and Miguel Angel Lopez. "Renewable Energy at Sustainable Cost Using a Combined Heat and Power WTE-Facility in the Paper Industry." In 18th Annual North American Waste-to-Energy Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/nawtec18-3532.

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In March 2008, Keppel Seghers started the engineering, supply, construction and commissioning of a Combined Heat and Power (CHP) Waste-to-Energy (WtE) plant in A˚motfors (Sweden). When completed in 2010 the plant will process close to 74,000 tons per year of household waste (average LHV = 10.5 MJ/kg) and limited quantities of (demolition) wood resulting in a yearly production of about 108,700 MWh of steam, 12,100 MWh of heat and 13,400 MWh of electricity. Herewith, the A˚motfors WtE-CHP is sized to meet the joined energy needs of the local paper production, neighboring industries and buildings at an overall net plant efficiency of almost 65%. The WtE-CHP will offer state-of-the-art combustion and energy recovering technology, featuring Keppel Seghers’ proprietary Air-Cooled Grate, SIGMA combustion control and integrated boiler. Waste is fed into the combustion line with an automatic crane system. To surpass the stringent EU emission requirements, a semi-dry flue gas cleaning system equipped with Keppel Seghers’ Rotary Atomizer was selected as economic type of process for purifying the combustion gas from the given waste mixture. Furthermore a low NOx-emission of 135 mg/Nm3 (11%O2, dry) as imposed by Swedish law is achieved by SNCR. The plant engineering is described with a focus on the overall energy recovery. As stable steam supply to the paper mill and the district heating system needs to be assured under all conditions the design includes for supporting process measures such as combustion air preheating, steam accumulation, turbine bypassing, buffering of the main condenser and back-up energy supply from an auxiliary fuel boiler. Additionally, external conditions can trigger distinct plant operation modes. A selected number of them are elaborated featuring the WtE-plant’s capability to conciliate a strong fluctuating steam demand with the typical intrinsic inertia of a waste-fired boiler. With prices for fossil fuels increasing over the years, the cost for generating process steam and heat has become dominant and for paper mills even makes the overall difference in viability. As will be documented in this paper, the decision to build the A˚motfors WtE-CHP was taken by Nordic Paper after a quest for significant cost-cutting in the production of process energy. Moreover, the use of industrial and household waste as fuel brings along the advantage of becoming largely independent from evolutions on the international oil and gas markets. By opening up the possibility for a long-term secured local (waste) fuel supply at fixed rates, WtE-technology offers a reliable alternative to maintain locally based industrial production sites. The Nordic Paper mills in A˚motfors are therefore now the first in Sweden to include a waste-fired CHP on a paper production site.
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Sohnemann, Jens, Walter Scha¨fers, and Armin Main. "Waste Combustion Technology and Air Emission Control Developments by Fisia Babcock Environment." In 19th Annual North American Waste-to-Energy Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/nawtec19-5418.

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The efforts for reducing the emissions into the atmosphere start already in the furnace and are completed by an effective flue gas cleaning system. This implies the necessity for design developments of key components for a modern EfW plant. For the core component of the firing system — the grate — Fisia Babcock Environment (FBE) is using forward moving grates as well as roller grates. The moving grate, which is used in the great majority of all our plants, has specific characteristics for providing uniform combustion and optimal burnout. These include, amongst others: - Uniform air supply by means of specific grate bar geometry. - Two grate steps in direction of waste transport for optimum burnout. - Flexible adaptation of the combustion process to the respective conditions and requirements by zone-specific air distribution and transport velocity of waste on grate. - Combustion control adapted to the specific plant for ensuring a consistent combustion process and production of energy. In addition to these features influencing the emissions the moving grate exhibits also specific characteristics regarding the mechanical aspects allowing low-maintenance and reliable operation. For optimum flue gas burnout a good oxygen distribution after leaving the combustion zone is required. For ensuring this, the injection of secondary air is designed to produce a double-swirl, developed by FBE. Final reduction of the nitrogen constituents NO and NO2 to the stipulated emission value is achieved by the SNCR process. As well in this respect, there is a great amount of experience available. Besides these measures regarding the combustion process, this paper also reports about flue gas cleaning systems. In this field the FBE CIRCUSORB® process is presented and compared with the known dry absorption process. CIRCUSORB® is a lime-based flue gas cleaning process with continuous recirculation of the moistened reaction product and simultaneous addition of fresh hydrated lime. The flue gas temperature downstream of the economizer can be selected very low and permits in this way maximized utilization of the energy. The evaporation of the moisture from the reaction product (flash evaporation) effects final cooling down of the flue gas to optimum process temperature and improves at the same time SO2 separation. This reduces the technical investment required for the flue gas cleaning process. The total of all measures taken and the robust design of all components permit economical plant operation while complying with the stipulated emission limit values.
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